Word: illuminatione
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In 1931, work was hindered in Cambridge by the number overcast nights and imperfect atmospheric conditions resulting from dust street illumination, smoke and uneven heating of the air. It was then decided to erect a new station for their work here in the Northern Hemisphere. This new station is located...
The mosaic on the mica is in effect a photo-electric cell flattened out and each particle is a tiny photocell in itself. When lights and shadows of any scene fall upon those particles, the light waves set up a positive electro-magnetic tension in the particles. The oscillating cathode...
Two much-publicized electrical companies-General Electric and Westinghouse-supply most of the U. S. with lamp bulbs. In Europe that function is performed chiefly by potent Philips Glow-lampworks of Holland, which also boasts one of the finest physical research laboratories east of the Atlantic. Last week it appeared...
The light of the bulb is monochromatic, i.e. it glows in but one color. Such light is useful in highway illumination because it reveals the details of objects at low levels of illumination, casts almost no shadow. The yellow glow of the sodium eliminates the offensive glare of white light...
When Professor Auguste Piccard floated back to earth from the stratosphere, he reported that the sky up there was deep, dark blue in daytime (TIME, June 8, 1931). Last week, floating down from a flight of logic. Astronomer Otto Struve of Yerkes Observatory declared in the Astrophysical Journal that the...